CN100474813C - Programmable part of synchronous network and management method thereof - Google Patents
Programmable part of synchronous network and management method thereof Download PDFInfo
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- CN100474813C CN100474813C CNB021274118A CN02127411A CN100474813C CN 100474813 C CN100474813 C CN 100474813C CN B021274118 A CNB021274118 A CN B021274118A CN 02127411 A CN02127411 A CN 02127411A CN 100474813 C CN100474813 C CN 100474813C
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- 238000007726 management method Methods 0.000 title abstract description 16
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1605—Fixed allocated frame structures
- H04J3/1611—Synchronous digital hierarchy [SDH] or SONET
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
- H04Q3/0062—Provisions for network management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
- H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
- H04J2203/0057—Operations, administration and maintenance [OAM]
- H04J2203/0058—Network management, e.g. Intelligent nets
Abstract
The present invention ralates to part of SDH or SONET telecommunication network and its management method. Described is a SDH or SONET telecommunication network element (NE) provided with a plurality of interfaces (I1, I2, I3) for managing first SDH or SONET flows, comprising: a) a plurality of first layer ports (PS) for managing second SDH or SONET flows, wherein the ports (PS) are individually programmable as concerns the hierarchical structure of the managed flows, and b) a switching system (SS) coupled to the interfaces (I1,I2,I3) and to the ports (PS), in order to implement the switching of virtual containers between the SDH or SONET flows, wherein the switching system (SS) is programmable as far as the switching to be implemented is concerned.
Description
Technical field
The present invention relates to the management method of synchronous digital hierarchy SDH or synchronous optical network SONET communication network parts and this parts.
Background technology
Each communication network can be considered as one group of interconnected network components (equipment electronics and/or light) by electricity, light or wireless connections.
Some equipment flexibly are willing to buy and install by the provider of communication network, to satisfy the requirement of user to the network service easier and more economically.
In addition, provider prefer can be by network management system fully and the equipment that easily manages.
Generally, telecommunication apparatus be modular type and comprise that several plates, each plate have its oneself function, the buyer of equipment also is decided by its " configuration ", promptly which and how many plates will be installed.For example, if equipment can be managed the 256SDH stream by 155Mb/s possibly when beginning, this equipment comprises the plate according to the right quantity of such requirement, if after the several years, requirement has changed and need for example manage by the 16SDH stream of 155Mbh with by the 256SDH stream of 622Mlb/s, then will remove and abandon some plates (because these plates are die on) and insert the new plate that some satisfy new demand.Certainly, it is averse that this situation provides the merchant.
Even under the situation of the traffic guidance capacity that does not increase equipment, need to reconfigure network, occur similar problem equally.
Summary of the invention
The objective of the invention is to solve such problem for SDH or SONET type communication network.
The invention provides a kind of SDH/SONET communication network parts with a plurality of interfaces (I1, I2, I3) that are provided for managing first synchronous digital hierarchy SDH/ synchronous optical network SONET stream, this network components comprises:
A) port of a plurality of ground floors (PS) is used to manage the 2nd SDH/SONET stream, and each port (PS) of described ground floor can independently be programmed to the hierarchy of the stream that related quilt is managed; With
B) switching system (SS), be connected to each interface (I1, I2, I3) and be connected to each port (PS) of ground floor, the exchange of implementing the Virtual Path bag between the SDH/SONET stream is installed, and described switching system (SS) is programmable to the related exchange that will realize
Described switching system (SS) comprises the matrix (MTX) that is used to exchange the SDH/SONET signal and first inner be connected (L-O), and this connection is connected to each port (PS) of ground floor with matrix (MTX),
Wherein, matrix (MTX) comprises first switch (SW1), installation is used to receive the Virtual Path bag of described second stream, generation has the frame structure that is similar to the SDH/SONET frame and comprises the first multiplexing internal signal of the Virtual Path bag of described reception, and sends described first signal to described first connection (L-O).
Basic design of the present invention is to use the programmable type port of communication protocol.
The present invention also provides a kind of method of managing described network components, comprising:
Programming is by the step and the step of programming by the exchange of switching system (SS) enforcement of the hierarchy of the described stream of each port (PS) management of ground floor.
Description of drawings
With reference to accompanying drawing, by the detailed description that only provides for the mode of non-restrictive explanation example, it is clear that the present invention will become certainly, and express the very simple block diagram according to network components of the present invention among the figure.
Embodiment
With reference to unique accompanying drawing, installation is used for SDH type communication network according to network components NE of the present invention, secrecy technology of the present invention also can be applicable to network components and SONET type network, in fact, owing to be known, two kinds of communication systems are very similar, hereinafter, we think SDH and sonet network all fours, and are replacing use SDH/SONET symbol.
Network components NE be provided with a plurality of SDH/SONET of being used for (STM-1, STM-4, STM-16, STS-1, STS-3 ...) interface I1, I2, the I3 of the management of data flow, these data flow will be called " first data flow " hereinafter; In the drawings, input interface I1-I, I2-I, I3-I and output interface I1-O, I2-O, I3-O have been expressed as and have been connected to other connecting line of branch; In SDH/SONET (but also comprising ATM and IP) field, all the time as a reference,, remain that unidirectional connection by two physics realizes even under the whole circumstances almost with two-way connection.
This network components NE comprises:
A) a plurality of ground floor port PS, be used to manage the SDH/SONET data flow (VC12, VC11, VC4, VC3, VT1.5, VT6 ...), these will be called " second stream " hereinafter; With
B) switching system SS is connected to interface I1, I2, I3 and is connected to ground floor PS port, and installs, and is used to realize the exchange of the Virtual Path bag of (in most of the cases, under two kinds of situations of first and second streams) between the SDH/SONET stream;
To relate to (VC12, VC11, VC4, VC3, VT1.5, VT6 ...) the layering order of management flow, each port of ground floor PS is programmable separately; To the exchange that will realize that relates to, switching system SS is programmable.
Term " ground floor port " is the terminal prot that expression belongs to each communication protocol of an ISO/OSI layer, under situation of the present invention, is SDH or SONET port.
This network components is expressed wide flexibility on the point of application with respect to common network components.
According to particularly preferred first embodiment of the present invention, switching system SS comprises the switching matrix MTX and the first inner L-O that is connected that is used for the SDH/SONET signal, connects the MTX matrix to ground floor port PS; In addition, matrix M TX comprises the first switch SW1, assembling is used to receive the Virtual Path bag (virtual container) of second stream, so that produce and (for example have the SDH/SONET of being similar to frame structure, STM-1 or STM-4) and each Virtual Path bag of being present in reception multiplexing in first internal signal, with in first transmission that is connected first signal on the L-O; And in addition, the Virtual Path Bao Eryan that is inserted into second data flow to relating at least, matrix M TX is programmable.
By this way, each port PS can be placed on each plate of equipment, and this equipment and this plate communicate, and this plate generally is loaded with matrix M TX by the simple connection L-O of for example tandem type.
Under the situation of certain quantity that needs port PS, these ports can not be placed on the single plate, and a plurality of plates and corresponding a plurality of L-O of connection of port PS can be provided.
In the first such embodiment, the better exploitation for the transmission capacity that connects L-O advantageously provides a SW1 switch, and the position of the Virtual Path bag that receives in the frame according to first signal is able to programme.
In this first embodiment, advantageously provided the higher flexibility of network components NE, in switching system SS, connect the second switch SW2 that L-O is connected to the first switch SW1 by first, and be connected to the port PS of ground floor, and assembling is used to receive first signal, and extraction is included in Virtual Path bag wherein, and send these Virtual Path bags each PS port to ground floor, and the second such switch is provided, and is programmable when related between each port of Virtual Path bag that relates to extraction and ground floor.
According to the of the present invention second special preferred embodiment, switching system SS comprises the switching matrix MTX and the second inner L-I that is connected of SDH/SONET signal, and this each PS port that connects ground floor is to matrix M TX; In addition, matrix M TX comprises and can connect the first switch SW1 of L-I reception from second internal signal of ground floor port PS by second, second internal signal (for example has the SDH/SONET of being similar to frame, STM-1 or STM-4) structure, and be present in each Virtual Path bag multiplexing of second stream, and extract the Virtual Path bag that is included in wherein, and they further exchange in the inner transmission of this matrix M TX; And have, the further exchange that matrix M TX will implement the Virtual Path bag that relates to second stream is programmable again.
In such a way, each port PS can be placed on the independent plate with the equipment of board communications, and this plate generally is loaded with matrix M TX by the simple connection L-I of for example tandem type.
Under the situation of needs quantity PS port, these ports can not be placed on the single plate, and a plurality of plates and corresponding a plurality of L-I of connection of port PS can be provided.
Under the situation of second embodiment, for the flexibility of higher network parts NE, advantageously provide a SW1 switch, this device is programmable for related between the Virtual Path bag of the Virtual Path bag that relates to extraction and second stream.
In this second embodiment, better exploitation for the transmission capacity that connects L-I, advantageously in switching system SS, provide by second and connect the second switch SW2 that L-I is connected to a SW1 switch, and be connected to each port PS of ground floor, and can receive the Virtual Path bag from each port PS of ground floor, and produce the multiplexing secondary signal of the Virtual Path bag that is used to receive, and send this secondary signal to the first switch SW1, and when the position of this second switch SW2 when the Virtual Path bag that receives in the frame that relates to secondary signal is provided, be programmable.
Connection L-O and L-I among the network components NE are unidirectional, so that manage by mode independently, on the contrary, in SDH/SONET (also comprising ATM and IP) field each to be connected nearly all be two-way, and therefore connecting L-O may be treated to single two-way the connection with L-I.In this case, the feature of first preferred embodiment and second preferred embodiment can make up.
Can also comprise according to network components NE of the present invention:
C) a plurality of second layer port PA and
D) be connected to ground floor each port PS a side and to the jockey SW3 of the other side of each port PA of the second layer, and install and be used to connect each port PA of each port PS of ground floor to the second layer.
Each port of the second layer is the communication protocol terminal port that belongs to the 2nd ISO/OSI layer; Under situation of the present invention, ATM or IP port; Configurable each port also may be provided under ATM or IP port mode.
The existence of each port PA makes network components NE more flexible, and is general, the corresponding PA port of each PS port.
If network components NE constitutes by can remove/increase the such mode of PDH encapsulation at second stream, can also obtain further flexibility; Can advantageously carry out this task by each PS port or by each PA port; Therefore these ports can be programmable, to realize other the such function except the standard feature of this port itself.
Explained how to realize many functions, so that more flexibilities are provided in according to network components of the present invention by network components with programmable features; So that make according to network components of the present invention manageable; Can implement this programming mode by network management system advantageously arranges.
According to a further aspect, the present invention relates to the method for the management of such network components.
Consist essentially of the step of the exchange that programming implemented by switching system SS by the step of the hierarchy of the stream of each PS Port Management of ground floor and programming according to the management method of network components of the present invention.
This method can also be included in the step of programming among the matrix M TX, when relating at the Virtual Path bag of the input of matrix M TX with at the Virtual Path bag of the output of matrix M TX, will implement exchange to the Virtual Path bag of second stream.
Under the situation that exists L-O to connect, this method can comprise the step of the Virtual Path package location in first signal among the programming first switch SW1.
Advantageously, this method can comprise and being programmed among the second switch SW2 by related step between each PS port of the Virtual Path bag of first signal extraction and ground floor.
Under the situation that exists L-I to connect, this method can comprise the step that is programmed in the Virtual Path package location in the frame of secondary signal among the second switch SW2.
Advantageously, this method can comprise and is programmed among the first switch SW1 related step between the Virtual Path bag that extracts from secondary signal and the second Virtual Path bag that flows.
In addition, can comprise according to method of the present invention that programming PDH encapsulates/go encapsulation and by each (SDH or SONET) port with by the step of the agreement of each (ATM or IP) Port Management.
As mentioned above, it is public implementing according to method of the present invention whole or in part by computer program, therefore when node when computer-implemented, these programs will comprise the code section installation of implementing this method.This computer program is considered within the scope of the invention.
Whole computer program, perhaps one or more code sections can be loaded into computer memory device (for example, CD-ROM, floppy disk, EPROM storage device etc.); Such storage device is also thought within the scope of the invention.
Hereinafter, with the critical software aspect of considering according to method of the present invention.
When implementing by computer program, the method that is used for the supervising the network parts can comprise the port to the ground floor of equipment port attribute produce software asks and contact to the software asks of the port of ground floor to one of each PS port (physics) of ground floor, and the step that sends the port that relevant port attribute information is associated to ground floor.
Equally, port generation software asks to the second layer of equipment port attribute can be provided, and contact to one of each (physics) PA port of the second layer, and sends the step of the port that relevant port attribute information is associated to the second layer to the software asks of the port of the second layer.
In this way, each physical port of the real use that has its operating function in network can only be seen by provider, with the untapped port that in network, has its operating function, therefore untapped port and will not being hidden in network by the function of network development.
By computer program according to pre-defined algorithm can advantageously be based upon automatically first and/or the secondary signal frame in the Virtual Path package location, these positions connect among L-O and the L-I in inside respectively propagates, by this method, provider does not carry out this task, and this task is inessential to physical management basically.
But provider must often reconfigure network, so program constantly distributes and go to distribute the time slot of these frames, after certain time, each frame that can occur dividing, even and therefore free time slot can use, program is regardless of the timing crack and flows to high content information.
Therefore, advantageously provide, utilize the position that to revise frame internal virtual path bag with the interactive operation of the program of supervisory computer by the operator.
On the contrary, this replacement cause " path " that interrelate with substituted information flow go mutual.
Certainly, this is inconvenient to network provider, because the time cycle that the repeated interaction in path will be rectificated.
In order to address this problem, the present invention predicts the software requirement of port, and the title of supposing port is related, and the pseudo channel of each interior location of each frame that is associated and second stream is stipulated according to attribute by computer program.Only revise property value and do not revise management entity with the moving of stream that a port is got in touch, management entity may require to revise and stop and produce the new modification with new feature.
Then, we point out according to network components of the present invention because its function and programmability are the connections that is fit to be installed between SDH/SONET network and the ATM/IP network.
So far, even we have described SDH and sonet network, but fully aware of, the present invention also can be applied to its synchronized model network that constitutes progress or be different from SDH and sonet network in the future.
Claims (14)
1. one kind is provided for managing the SDH/SONET communication network parts with a plurality of interfaces (I1, I2, I3) that the first synchronous digital hierarchy SDH/ synchronous optical network SONET flows, and this network components comprises:
A) port of a plurality of ground floors (PS) is used to manage the 2nd SDH/SONET stream, and each port (PS) of described ground floor can independently be programmed to the hierarchy of the stream that related quilt is managed; With
B) switching system (SS), be connected to each interface (I1, I2, I3) and be connected to each port (PS) of ground floor, the exchange of implementing the Virtual Path bag between the SDH/SONET stream is installed, and described switching system (SS) is programmable to the related exchange that will realize
Described switching system (SS) comprises the matrix (MTX) that is used to exchange the SDH/SONET signal and first inner be connected (L-O), and this connection is connected to each port (PS) of ground floor with matrix (MTX),
Wherein, matrix (MTX) comprises first switch (SW1), installation is used to receive the Virtual Path bag of described second stream, generation has the frame structure similar to the SDH/SONET frame and comprises the first multiplexing internal signal of the Virtual Path bag of described reception, and sends described first signal to described first inner connect (L-O).
2. according to the network components of claim 1, it is characterized in that,
Described matrix (MTX) is programmable to each related Virtual Path bag at least, so that insert described second stream.
3. according to the network components of claim 2, it is characterized in that,
Described first switch (SW1) is programmable to the position of described each Virtual Path bag of receiving in related described first signal frame.
4. according to the network components of claim 3, it is characterized in that,
Comprise second switch (SW2), connect each port (PS) that (L-O) is connected to first switch (SW1) and is connected to described ground floor by described first inside, and install and be used to receive described first signal, extract the Virtual Path bag that wherein comprises, and sending their each ports (PS) to described ground floor, wherein said second switch (SW2) is programmable to the association between each port (PS) of each Virtual Path bag of related extraction and ground floor.
5. according to the network components of claim 1, it is characterized in that,
Described switching system (SS) comprises the matrix (MTX) that is used to exchange the SDH/SONET signal and each port (PS) that is connected ground floor second inner connect (L-I) to matrix (MTX);
Matrix (MTX) comprises first switch (SW1), installation is used for by described second inner each port (PS) reception second internal signal that connects (L-I) from described ground floor, this second internal signal has the frame structure similar to the SDH/SONET frame structure and is present in each Virtual Path bag multiplexing of described second stream, extraction is included in Virtual Path bag wherein, and in order further to exchange in described matrix (MTX) these bags is sent; With
It is programmable that described matrix (MTX) is further implemented exchange to the described Virtual Path bag of related described second stream.
6. according to the network components of claim 5, it is characterized in that,
First switch (SW1) is programmable about the Virtual Path bag that extracts with described second the related of Virtual Path bag that flows.
7. according to the network components of claim 6, it is characterized in that,
Also comprise second switch (SW2), be connected to first switch (SW1) by described second inner connect (L-I), and be connected to each port (PS) of described ground floor,
And each port (PS) that is used for from described ground floor is installed is received the Virtual Path bag, the multiplexing described secondary signal of the described Virtual Path bag that generation is used to receive, and sending described secondary signal to described first switch (SW1), the position of the described Virtual Path bag that receives in the frame of wherein said second switch (SW2) about described secondary signal is programmable.
8. according to any one network components of each claim formerly, it is characterized in that also comprising:
C) port of a plurality of second layers (PA) and
D) jockey (SW3), be connected ground floor each port (PS) a side and be connected the opposite side of the port (PA) of the second layer, and install and be used to connect the port (PA) of each port (PS) of ground floor to the second layer.
9. according to the method for any one supervising the network parts of each claim formerly, comprising:
Programming is by the step and the step of programming by the exchange of switching system (SS) enforcement of the hierarchy of the described stream of each port (PS) management of ground floor.
10. according to the method for claim 9, also be included in the step that the exchange to the second Virtual Path bag that flows of realization is programmed in the matrix (MTX).
11., also be included in the step of the Virtual Path package location in the frame of programming first signal in first switch (SW1) according to the method for claim 10.
12., also being included in the related step between each port (PS) of programming is extracted in second switch (SW2) Virtual Path bag and ground floor according to the method for claim 11.
13., also be included in the step of the Virtual Path package location in the frame of programming secondary signal in second switch (SW2) according to the method for claim 10.
14., also being included in the related step between programming is extracted in first switch (SW1) Virtual Path bag and the second Virtual Path bag that flows according to the method for claim 13.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT001656A/2001 | 2001-07-31 | ||
| IT2001MI001656A ITMI20011656A1 (en) | 2001-07-31 | 2001-07-31 | SYNCHRONOUS NETWORK PROGAMMABLE ELEMENT AND METHOD OF MANAGEMENT OF THIS ELEMENT |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1400773A CN1400773A (en) | 2003-03-05 |
| CN100474813C true CN100474813C (en) | 2009-04-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021274118A Expired - Fee Related CN100474813C (en) | 2001-07-31 | 2002-07-31 | Programmable part of synchronous network and management method thereof |
Country Status (7)
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|---|---|
| US (1) | US7379482B2 (en) |
| EP (1) | EP1282251B1 (en) |
| CN (1) | CN100474813C (en) |
| AT (1) | ATE331354T1 (en) |
| DE (1) | DE60212520T2 (en) |
| ES (1) | ES2265026T3 (en) |
| IT (1) | ITMI20011656A1 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5315594A (en) * | 1992-03-02 | 1994-05-24 | Alcatel Network Systems, Inc. | Inter-network transport element of sonet overhead |
| US5805571A (en) * | 1996-03-19 | 1998-09-08 | Zwan; Bryan J. | Dynamic communication line analyzer apparatus and method |
| FR2749725B1 (en) * | 1996-06-06 | 1998-07-31 | Alcatel Submarcom | TERMINAL FOR A SECURE BIDIRECTIONAL LINK CONDUCTING MULTIPLEXED DATA ACCORDING TO THE SYNCHRONOUS DIGITAL HIERARCHY |
| JPH11266220A (en) * | 1998-03-18 | 1999-09-28 | Fujitsu Ltd | Transmitter of sdh system |
| US6496519B1 (en) * | 1998-08-27 | 2002-12-17 | Nortel Networks Limited | Frame based data transmission over synchronous digital hierarchy network |
| US6917630B1 (en) * | 1998-10-06 | 2005-07-12 | Nortel Networks Limited | Concatenation of containers in synchronous digital hierarchy network |
| US6937614B1 (en) * | 1999-11-12 | 2005-08-30 | Nortel Networks Limited | Transparent port for high rate networking |
| ATE253791T1 (en) * | 2000-05-26 | 2003-11-15 | Cit Alcatel | METHOD FOR TRANSMITTING SYNCHRONOUS TRANSPORT MODULES OVER A SYNCHRONOUS TRANSPORT NETWORK |
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2001
- 2001-07-31 IT IT2001MI001656A patent/ITMI20011656A1/en unknown
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2002
- 2002-07-15 AT AT02291777T patent/ATE331354T1/en not_active IP Right Cessation
- 2002-07-15 EP EP02291777A patent/EP1282251B1/en not_active Expired - Lifetime
- 2002-07-15 DE DE60212520T patent/DE60212520T2/en not_active Expired - Lifetime
- 2002-07-15 ES ES02291777T patent/ES2265026T3/en not_active Expired - Lifetime
- 2002-07-30 US US10/206,961 patent/US7379482B2/en active Active
- 2002-07-31 CN CNB021274118A patent/CN100474813C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US7379482B2 (en) | 2008-05-27 |
| ES2265026T3 (en) | 2007-02-01 |
| ITMI20011656A0 (en) | 2001-07-31 |
| CN1400773A (en) | 2003-03-05 |
| DE60212520D1 (en) | 2006-08-03 |
| ITMI20011656A1 (en) | 2003-01-31 |
| EP1282251B1 (en) | 2006-06-21 |
| DE60212520T2 (en) | 2006-12-21 |
| EP1282251A2 (en) | 2003-02-05 |
| ATE331354T1 (en) | 2006-07-15 |
| EP1282251A3 (en) | 2004-09-08 |
| US20030027564A1 (en) | 2003-02-06 |
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